AV9155C-44
Pin Descriptions for AV9155C-44
PIN NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PIN NAME
3.529 MHz
X2
X1
VDD
GND
20 MHz
N/C
30 MHz
AGND
N/C
OE#
N/C
16 MHz
N/C
GND
VDD
2XCPU
N/C
FS1
FS0
TYPE
OUT
OUT
IN
PWR
PWR
OUT
-
OUT
PWR
-
IN
-
OUT
-
PWR
PWR
OUT
-
IN
IN
DESCRIPTION
3.529 MHz reference clock output.
CRYSTAL connection.
CRYSTAL connection.
DIGITAL POWER SUPPLY (+5V).
Digital GROUND.
20 MHz clock output.
Not internally connected.
30 MHz keyboard clock output.
ANALOG GROUND (original version).
Not internally connected.
OUTPUT ENABLE. Tristates 2XCPU output when high. (Has
internal pull-up.)
Not internally connected.
16 MHz reference clock output.
Not internally connected.
Digital GROUND.
DIGITAL POWER SUPPLY (+5V).
CPU clock output.
Not internally connected.
CLOCK frequency SELECT #1. (Has internal pull-up.)
CLOCK frequency SELECT #0. (Has internal pull-up.)
2
ICS [ INTEGRATED CIRCUIT SYSTEMS ]
